Liquid crystal display panel in an OPR system

Haisong Liu; Minxian Wu; Guofan Jin; Gang Cheng; Qingsheng He

doi:10.1117/12.304782

23 March 1998 Liquid crystal display panel in an OPR system

Haisong Liu, Minxian Wu, Guofan Jin, Gang Cheng, Qingsheng He

Proceedings Volume 3386, Optical Pattern Recognition IX; (1998) https://doi.org/10.1117/12.304782
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

In this paper, we develop an optoelectronic pattern recognition system based on an incoherent optical correlator. The real-time input image is correlated with stored database images consecutively after several necessary preprocessing steps, and the recognition result is given quickly. The key device for the optical correlation is a SHARP QA-1200 8.4' active matrix TFT liquid crystal display (LCD) panel which is used as two real-time spatial light modulators (SLMs) for both the input and the database image. Several practical difficulties when utilizing the LCD panel as a light intensity modulator have been overcome. Experimental results are given.

Citation Download Citation

Haisong Liu, Minxian Wu, Guofan Jin, Gang Cheng, and Qingsheng He "Liquid crystal display panel in an OPR system", Proc. SPIE 3386, Optical Pattern Recognition IX, (23 March 1998); https://doi.org/10.1117/12.304782

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